If I Want To End Up With An Inseam of X, What Will The Hem Be?

[Giles]

Total inseam in inches minus 13 = Lower leg

Knee minus hem in inches = Taper

Taper/Lower Leg = Taper per inch (TPI)

Number of inches you want to shorten inseam by, multiplied by TPI equals the amount the hem will be larger than original hem

[BloodnThunder]

As always, thank you for these bits of knowledge.  Whenever friends/acquaintances ask me about denim one of the first things I tell them is to go to the resource page on the Iron Heart forums.

[Giles]

Well, thank you….

[moskiitto]

I made python3 code for this, if you want to run, find online python compiler for example (https://www.online-python.com/) and paste the below code and run.

original_inseam = float(input("Original inseam? "))
hemmed_inseam = float(input("Hemmed inseam? "))
knee = float(input("Knee? "))
hem = float(input("Hem? "))

lower = original_inseam - 13
taper = knee - hem
tpi = taper / lower

result = hem + (original_inseam - hemmed_inseam) * tpi
print(result)